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The feasibility of constructing composite rotors in the laboratory for use on a 60- to 120-Hz supply has been established and the experimental results with such rotors have been published for the first time. Results obtained from the tests made on a three-phase induction motor with different solid-iron as well as composite rotors are presented. These are compared with the theoretically predicted characteristics based on existing analytical as well as numerical analyses.
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Sarma et al. (1972) studied this question.
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